Twin-Arm Impact Sprinkler, 1-Inch Female Inlet

The extended twin-arm layout and covered upper spring distinguish this sprinkler from the exposed-spring multi-outlet heads. It is a practical choice when matching a replacement head to an existing field irrigation layout.

Watering performance at a glance

This sprinkler has a 1-inch female-thread inlet, a listed spray radius of 15–17 m, an operating pressure range of 2.0–5.0 bar and a rated flow range of 3.7–5.0 m³/h. Radius describes the distance from the head to the edge of the spray; it is not the spacing to use between sprinklers. Available coverage varies with operating pressure, nozzle configuration, wind and installation height.

Match the head to your irrigation zone

Check pressure at the sprinkler while the zone is running. A pump pressure reading alone does not account for pressure lost through pipework, fittings and elevation changes. Add the flow requirements of the heads that will operate together and confirm that the water supply can deliver that total at the required pressure.

Plan overlapping spray patterns for field crops, orchard areas or larger gardens. Wind can move the spray and reduce useful coverage, so assess the watering pattern on site before setting the final spacing or irrigation run time.

Connection and installation

Connect the female inlet to a compatible 1-inch male-thread fitting on a securely supported riser. Confirm the thread standard before ordering an adapter; nominal size alone does not establish compatibility. Flush the supply line before fitting the head, then inspect the inlet joint for leaks when the system is pressurized.

Routine care

Keep the impact arms free to move and inspect the outlets for debris if the spray pattern changes. Isolate the water supply before removing or cleaning the head. Check the selected configuration and connection against the sprinkler being replaced rather than assuming that all 1-inch impact heads have the same flow demand or watering range.